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When phosphorus pentachloride, PCl5(g), is placed in a sealed container, it breaks apart

Living by Chemistry | 2nd Edition | ISBN: 9781464142314 | Authors: Angelica M. Stacy ISBN: 9781464142314 439

Solution for problem 4 Chapter Lesson 119

Living by Chemistry | 2nd Edition

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Living by Chemistry | 2nd Edition | ISBN: 9781464142314 | Authors: Angelica M. Stacy

Living by Chemistry | 2nd Edition

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Problem 4

When phosphorus pentachloride, PCl5(g), is placed in a sealed container, it breaks apart reversibly. Th e concentrations of the starting substance and products are monitored. Use the data in the table to create a graph showing the concentrations of the starting substance and products over time. PCl5(g) PCl3(g) 1 Cl2(g) Time (s) [PCI5] (mol/L) [PCI3] (mol/L) [Cl2] (mol/L) 0 0.00 1.00 1.00 20 0.10 0.90 0.90 40 0.20 0.80 0.80 60 0.25 0.75 0.75 80 0.29 0.71 0.71 100 0.29 0.71 0.71 120 0.29 0.71 0.71 a. What are the equilibrium concentrations of the starting substance and the products? b. At what time did the mixture reach equilibrium? How do you know? c. At 20 seconds, which process is faster, the forward or the reverse process? At 100 seconds? d. Why is the amount of starting substance, PCl5, not equal to the amounts of each of the products, PCl3 and Cl2, at equilibrium? Support your answer with evidence. e. Why are the amounts of PCl3 and Cl2 always equal to one another?

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CH. 3 The Mole and Stoichiometry  What is a mole - The SI Unit for amount - A way to deal with atoms, molecules, and/or compounds in larger quantities so as to not to have to deal with them on the microscopic level - The number of atoms in 12 grams of a sample C – 12 (Carbon – 12) - The same for all substances...

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Chapter Lesson 119, Problem 4 is Solved
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Textbook: Living by Chemistry
Edition: 2
Author: Angelica M. Stacy
ISBN: 9781464142314

Since the solution to 4 from Lesson 119 chapter was answered, more than 214 students have viewed the full step-by-step answer. The full step-by-step solution to problem: 4 from chapter: Lesson 119 was answered by , our top Chemistry solution expert on 03/15/18, 05:35PM. This textbook survival guide was created for the textbook: Living by Chemistry, edition: 2. Living by Chemistry was written by and is associated to the ISBN: 9781464142314. This full solution covers the following key subjects: . This expansive textbook survival guide covers 153 chapters, and 1191 solutions. The answer to “When phosphorus pentachloride, PCl5(g), is placed in a sealed container, it breaks apart reversibly. Th e concentrations of the starting substance and products are monitored. Use the data in the table to create a graph showing the concentrations of the starting substance and products over time. PCl5(g) PCl3(g) 1 Cl2(g) Time (s) [PCI5] (mol/L) [PCI3] (mol/L) [Cl2] (mol/L) 0 0.00 1.00 1.00 20 0.10 0.90 0.90 40 0.20 0.80 0.80 60 0.25 0.75 0.75 80 0.29 0.71 0.71 100 0.29 0.71 0.71 120 0.29 0.71 0.71 a. What are the equilibrium concentrations of the starting substance and the products? b. At what time did the mixture reach equilibrium? How do you know? c. At 20 seconds, which process is faster, the forward or the reverse process? At 100 seconds? d. Why is the amount of starting substance, PCl5, not equal to the amounts of each of the products, PCl3 and Cl2, at equilibrium? Support your answer with evidence. e. Why are the amounts of PCl3 and Cl2 always equal to one another?” is broken down into a number of easy to follow steps, and 172 words.

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